You booked flights to Kathmandu. You’ve seen the photos of Everest Base Camp. Now you’re staring at a pile of gear catalogs and a half-dozen government websites, wondering what you actually need. This guide cuts through the noise.
1. The Gear That Keeps You Alive (and Comfortable)
Most beginners overpack. The real trick is layering, not bulk. Your kit needs to handle -10°C at night and 25°C midday sun.
Footwear: Your Most Critical Decision
Buy boots that fit with thick socks. The Scarpa Zodiac Plus GTX ($320) is the gold standard for Himalayan trails. It has a Vibram sole that grips wet rock and a Gore-Tex membrane that stays breathable. Break them in for 50km before you leave. Blisters on Day 1 ruin everything.
Avoid waterproof boots that are also insulated — your feet will sweat, then freeze. Get uninsulated Gore-Tex and wear merino wool socks. Darn Vermont midweight hiking socks ($22/pair) are worth every cent. Bring three pairs. Rotate them daily.
The Sleep System That Won’t Fail
Teahouses provide blankets, but they’re thin and often damp. A Sea to Summit Spark SP III sleeping bag ($400, -5°C rating) packs down to the size of a football. Pair it with a Therm-a-Rest NeoAir XLite NXT sleeping pad ($220). The pad has an R-value of 4.5 — enough to insulate you from frozen ground at 4,000m.
Don’t cheap out on the pad. A cold night destroys your energy for the next day’s climb.
Layers That Actually Work
- Base layer: Icebreaker Merino 200 Oasis ($100). Merino doesn’t stink after a week. Synthetic does.
- Mid layer: Patagonia Nano Puff Hoody ($280). 60g PrimaLoft Gold insulation. Warm when wet.
- Shell: Arc’teryx Beta AR Jacket ($650). Gore-Tex Pro fabric. Fully taped seams. This is your last line of defense against rain and wind.
One generic tip: Don’t bring cotton. Not one item. Cotton soaks sweat, stays wet, and causes hypothermia at altitude. Everything on your body should be merino, synthetic, or down.
2. Permits: The Paperwork That Can Stop You at a Checkpoint
You cannot enter Sagarmatha National Park or the Annapurna Conservation Area without the right permits. Multiple checkpoints exist along every trail. Missing one means a fine or being turned back.
| Permit | Cost | Where to Get It | Valid For |
|---|---|---|---|
| Sagarmatha National Park Entry Permit | NPR 3,000 (~$23) | Nepal Tourism Board, Kathmandu | Single entry |
| Annapurna Conservation Area Permit (ACAP) | NPR 3,000 (~$23) | Nepal Tourism Board or Pokhara | Single entry |
| TIMS (Trekkers’ Information Management System) Card | NPR 2,000 (~$15) for group trekkers | Kathmandu or Pokhara trekking agencies | Per trek |
Get both the park permit and TIMS card in Kathmandu before you fly to Lukla or drive to Pokhara. Allow 2-3 hours at the Nepal Tourism Board office. Bring two passport photos and a photocopy of your passport. No, you cannot buy them on the trail.
One generic tip: Keep all permits in a ziplock bag inside your jacket pocket. Checkpoints happen at 6am. Fumbling through your pack in the cold is miserable.
3. Altitude Sickness: The Real Risk Nobody Talks About Enough
Acute Mountain Sickness (AMS) kills trekkers every year. It doesn’t care how fit you are. The only cure is descending.
The Lake Louise AMS Score is the industry standard. If you have a headache plus one other symptom (nausea, dizziness, fatigue, trouble sleeping), you have AMS. Stop ascending. If symptoms worsen, go down 500m immediately.
Diamox (acetazolamide) is the only preventative medication proven to reduce AMS risk. Take 125mg twice a day starting 24 hours before you reach 2,500m. Side effects include tingling fingers and frequent urination. Worth it. Get a prescription from your doctor before you leave.
The golden rule: climb high, sleep low. Gain no more than 500m of sleeping altitude per day above 3,000m. If you’re at 4,000m, your next night should be at 4,000m or lower, even if you day-hike higher.
Failure mode: The biggest mistake is pushing through a headache because you’re on a schedule. Your itinerary is flexible. Your lungs aren’t. Turn around. The mountain will be there next year.
4. Water Purification: Don’t Drink the Stream Water
Giardia is real. So is E. coli. Himalayan streams look crystal clear but carry parasites from animal waste upstream. Boiling works but takes fuel and time. Chemical tablets leave a bad taste. Filtration is the best option.
The SteriPEN Ultra ($100) uses UV light to kill 99.9% of bacteria and viruses in 90 seconds. It runs on 2 AA batteries. One set lasts about 50 treatments. Weighs 90g. No pumping, no waiting.
Alternatively, the LifeStraw Peak Series Squeeze ($45) filters down to 0.2 microns. It removes bacteria and protozoa but not viruses. Attach it to a 1L Smartwater bottle (the standard trail bottle). Squeeze through. Done.
Teahouses sell bottled water at 100-200 NPR per liter ($0.75-$1.50). Buying it every day adds up fast, and the plastic waste is a problem in the mountains. Carry a filter. Refill at every tap.
One generic tip: Never fill your bottle directly from a stream. Fill a clean container, treat the water, then pour it into your bottle. Cross-contamination from dirty bottle threads is a common way people still get sick.
5. Navigation: Your Phone Will Die in the Cold
Trails in the Himalayas are generally well-marked, but weather can close in fast. Fog at 4,500m reduces visibility to 10m. You need a backup that doesn’t depend on battery.
The Garmin inReach Mini 2 ($400) is the standard for off-grid communication. It sends two-way text messages via satellite. It also has an SOS button that connects to a 24/7 emergency response center. Monthly subscription starts at $15. If you’re going solo or above 4,000m, this is not optional.
Download Maps.me (free) or Gaia GPS ($40/year) before you leave. Both work offline. Download the specific trail maps for Everest Base Camp or Annapurna Circuit. But remember: a phone with a dead battery is a brick. Keep it in an inner pocket against your body. Carry a Nitecore NB10000 power bank ($60). It’s 150g and charges a phone twice.
Failure mode: Relying on phone GPS alone. Batteries drain 3x faster in cold. Screens become unresponsive below freezing. A paper map and compass weigh 100g and never run out of power. Buy the Himalayan MapHouse trekking map ($12) for your route. Learn how to use a compass bearing before you go.
6. What Nobody Tells You About Teahouses
Teahouses are basic guesthouses along the trail. They cost $5-15 per night. The room includes a thin mattress and a pillow. That’s it. Blankets are available but often damp. You’ll share a squat toilet and a cold shower.
Meals are included in the room price if you eat dinner and breakfast there. Dal bhat (rice, lentil soup, vegetables) is the standard. It’s filling and provides carbs for the next day. Eat it. Skip the pizza — it’s made from reconstituted flour and cheese that tastes like plastic.
Verdict: The Mountain Hardwear Phantom Torch 0 sleeping bag ($600) is overkill for teahouse trekking. You don’t need a -20°C bag. A -5°C bag plus a silk liner ($40) is enough. The liner also keeps your sleeping bag clean from teahouse bed bugs.
Electricity is available at most teahouses above 3,000m, but outlets are limited. Charge your devices during dinner. Be prepared for power cuts. Solar panels are common but unreliable in cloudy weather.
The future of Himalayan trekking is shifting toward more sustainable practices. More teahouses now use solar water heaters and biogas. Some have banned plastic bottles. The trails are getting busier. Go now, but go prepared.
